阳泉矿区煤样不同应力状态下声发射特性分析  

Analysis on Activity of Acoustic Emission of Coal Samples in Yangquan Mining Area under Different Loading State

作　　者：杨昌永 白建平 郝春生 姚晋宝 袁瑞甫 史博文 YANG Chang-yong;BAI Jian-ping;HAO Chun-sheng;YAO Jin-baou;YUAN Rui-fu;SHI Bo-wen(State Key Laboratory of Coal and Coal-bed Methane Co-mining,Jincheng 048000,China;Yi'an Lanyan Coal and Coalbed Methane Co-mining Technology Co.,Ltd.,Taiyuan 030000,China;Shanxi Lanyan Coal-bed Methane Group Co.,Ltd.,Jincheng 048000,China;School of Energy Science and Engineering,Henan Polytechnic University,Jiaozuo 454000,China)

机构地区：[1]煤与煤层气共采国家重点实验室 [2]易安蓝焰煤与煤层气共采技术有限责任公司 [3]山西蓝焰煤层气集团有限责任公司 [4]河南理工大学能源科学与工程学院

出　　处：《煤炭技术》2020年第1期8-12,共5页Coal Technology

基　　金：山西省科技重大专项(MQ2015-02);山西省基础研究计划(煤层气联合研究基金)(2016012012);国家自然科学基金资助项目(U1704131)

摘　　要：为探索原煤煤样的力学性能和不同应力状态下的声发射活动特性,对阳泉矿区新景矿、平舒矿主采煤层的煤样进行了单轴、三轴压缩和巴西劈裂的声发射试验,分析了2种煤样力学性能及不同加载过程的声发射活动规律。证明通过监测声发射(微震)活动分析煤样或煤岩体内部破坏状态是一种方便有效的手段。In order to explore mechanical properties of original coal sample and characteristics of acoustic emission(AE)activity under different stress state,the uniaxial,triaxial compression and Brazilian splitting tests on coal samples of Xinjing coal mine and Pingshu coal mine in Yangquan mining area were performed.The mechanical properties of the two kinds of coal samples and AE activity in different loading processes were deeply analyzed.It is an effective method to acquaint the inside failure state of coal samples or in-site rock and coal mass by AE or microseismic monitoring and analyzing.

关 键 词：原煤试样 声发射 能量分布 应力状态 

分 类 号：TD315[矿业工程—矿井建设]